Durable RFID Retrofitting for Sterilizable Healthcare Assets

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Solution Overview

Problem

Healthcare facilities face challenges in implementing asset tracking technologies due to the need for retrofitting surgical instruments with RFID chips that meet sterilization standards, minimize dislodgement, and maintain functionality without disrupting operations, while adhering to regulatory requirements.

Innovation Solution

A method for coordinating the removal of healthcare assets from a facility involves pre-processing, manufacturing, and return phases to retrofit assets with durable RFID identifiers, using computational processors to determine unique identifiers and integrate them into healthcare facility management systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If surgical instruments are retrofitted with RFID chips to enable tracking, then asset management capability is improved, but the risk of chip dislodgement and contamination increases

Engineering Contradiction:

Improveasset tracking reliabilityVSAvoidchip dislodgement and biomaterial retention

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by performing RFID chip attachment, biocompatible coating application, and sterilization processing in a controlled manufacturing environment before the instruments are deployed to healthcare facilities. This ensures all critical modifications are completed under controlled conditions where contamination can be prevented and verified through testing protocols.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses biocompatible materials as an intermediary between the RFID chip and the surgical instrument surface. This intermediate layer prevents direct contact between the chip and biomaterials, eliminating contamination risks while maintaining RFID signal transmission. The intermediary also secures the chip firmly to the instrument surface, preventing dislodgement during sterilization and use.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If RFID chips are attached to surgical instruments, then asset identification capability is improved, but sterilization process complexity increases

Engineering Contradiction:

Improveasset identification accuracyVSAvoidsterilization process complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by modifying the physical and chemical properties of the RFID chip assembly through biocompatible coating and sterilization processing. These parameter changes make the chip assembly resistant to sterilization conditions (autoclaving, chemical sterilants) while maintaining RFID functionality. The coating material parameters are specifically selected to withstand high temperature and chemical exposure.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If manual counting of surgical assets is performed, then process simplicity is maintained, but human error and time consumption increase

Engineering Contradiction:

Improveprocess simplicityVSAvoidasset verification time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical counting process with an automated RFID detection system. Readers automatically detect and verify the presence of RFID tags on surgical instruments through electromagnetic fields, eliminating the need for manual visual inspection and counting. This substitution dramatically reduces verification time and eliminates human error while maintaining operational simplicity through automated workflows.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If large inventories of surgical instruments are retrofitted with RFID chips, then asset tracking capability is improved, but operational disruption increases

Engineering Contradiction:

Improveasset management reliabilityVSAvoidsurgical function continuity

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent applies segmentation by dividing the retrofitting process into separate phases: manufacturing phase where chips are attached and sterilization is performed, and deployment phase where pre-retrofitted instruments are delivered to facilities. This segmentation allows retrofitted instruments to be prepared in batches independently of facility operations, minimizing disruption to surgical functions while enabling comprehensive asset tracking implementation.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12406766B2Methods and apparatuses for managing healthcare assets and processes

Publication Date: 2025.09.02 INTRALOGIC HEALTH SOLUTIONS INC

AI summary

Healthcare asset units are enabled to accomplish a healthcare facility management objective by first preparing the asset units in a pre-processing phase by using a computational processor to determine a first unique identifier for each asset unit. The prepared asset units are then transported in a removal phase to a manufacturer location, retrofit in a manufacturing phase at the manufacturer location by applying manufacturing processes to implement the durable information identifier on each asset unit, and by using a computational processor to determine a second unique identifier for each asset unit. The prepared asset units are then transported in a return phase, from the manufacturer location to a healthcare facility where the retrofitted asset units are subsequently used to accomplish a healthcare facility management objective.